Would an 8" and 10" cake be enough to feed 60. The style of cake the customer is requesting isn't a tiered cake so I'm wonder in if I should bake 2 separate but identical cakes? Thoughts and suggestions please and thank you.
yes that's big enough for 1x2x4 inch servings -- traditional size servings
you could also do two 9's
Do two 9 inch stacked "double barrel" style to be one tall 9"? Don't know the style requested, but an option and added "wow" for tall cake presentation.
Here are a couple of ideas of how to arrange your cakes that are not tiered.
https://www.cakecentral.com/gallery/i/2221228/1322949292jpg https://www.cakecentral.com/gallery/i/1369702/birthday-with-heart https://www.cakecentral.com/gallery/i/1271471/haystacks https://www.cakecentral.com/gallery/i/1197295/birthday-and-anniversary